NonStop Server for Java 5.1 Tools Reference Pages

exceptions. The default units for n are bytes; n must be greater than 1000 bytes. To modify the
meaning of n, append either the letter k (or K) to indicate kilobytes, or the letter m (or M) to indicate
megabytes. For example, –Xss10240 and –Xss10k are equal.
-Xincgc
Specifies using the incremental low-pause garbage collector. This option is supported but using it can
lead to about a 10% decrease in garbage collection performance.
Deviations from Nonstandard Java Options
-Xmsn
Specifies the initial size, in bytes, of the memory-allocation pool. The default value is implementation
specific; the value is about 3.6 megabytes.
Deviations from Nonstandard -XX Java Options
-XX:+UseParallelGC
Specifies a parallel garbage collector. This option is disabled. If you specify this option, the Java VM
exits with the error: -XX:+UseParallelGC option is not supported on this platform.
-XX:+UseParNewGC
Specifies a parallel garbage collection. This option is disabled. If you specify this option, the Java VM
exits with the error: -XX:+UseParNewGC option is not supported on this platform.
-XX:+UseAdaptiveSizePolicy
Specifies an adaptive size policy. This option applies only for a parallel collector and, therefore, is
disabled. If you specify this option, the Java VM exits with the error:
-XX:+UseAdaptiveSizePolicy option is not supported on this platform.
-XX:+AggressiveHeap
Obtains the platform resources and configures the heap layout accordingly, uses parallel collector, and
enables AdaptiveSizePolicy option. This option applies only for a parallel collector and,
therefore, is disabled. If you specify this option, the Java VM exits with the error:
-XX:+AggressiveHeap option is not supported on this platform.
-XX:+UseConcMarkSweepGC
Specifies using the concurrent mark-sweep garbage collector. This option is disabled. If you specify
this option, the Java VM exits with the error: -XX:+UseConcMarkSweepGC option is not supported
on this platform.
-Xconcgc
Enables a concurrent mark-sweep garbage collector. This option is disabled. If you specify this option,
the Java VM exits with the error: -Xconcgc option is not supported on this platform.
HP Extensions to Standard Java Options
-nsjversion
Prints the NonStop Server for Java 5.1 build version.
HP Extensions to NonStandard Java Options
-Xabend
Turns on the abend option to abort the process instead of exiting with a non-zero exit code. If the NonStop Server